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Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental Laboratory began recording its sound surveillance system, SOSUS, in August 1991. It consists of a long train of narrow-band upsweeping sounds of several seconds in duration each.
A spectrogram of Upsweep. Upsweep is a sound detected by the U.S. National Oceanic and Atmospheric Administration's (NOAA) equatorial autonomous hydrophone arrays. The sound was recorded in August, 1991, using the Pacific Marine Environmental Laboratory's underwater sound surveillance system, SOSUS, and is loud enough to be detected throughout the entire Pacific Ocean.
Chapman helped to analyze the data from the recordings in the 1980s and discovered the data contained a “gold mine” of information about many kinds of sound in the ocean, including from marine ...
Unidentified sounds (11 P) U. Unidentified flying objects (5 C, 8 P) W. Anomalous weather (19 P) Pages in category "Unexplained phenomena" The following 33 pages are ...
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One ferry that linked the towns of Edenton and Mackeys, North Carolina, continued in service from 1734 to 1938, when a bridge was built across the Sound. Another, longer bridge of more than 3 miles (4.8 km) in length was built in 1990. Fishing was a major industry in the Albemarle Sound from the colonial period.
The Harry W. Kelley Memorial Bridge (Route 50) into Ocean City will see lane closures starting Jan. 3 for major repairs. Here's everything to know.
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